Color-photography print.



FREDERIC EUGEN E IVES, OF NEW YORK, N. Y.

COLOR-PHOTOGRAPHY PRINT.

Specification of Letters Patent. Patented NOV. 16, 19515.

1% Drawing. Continuation in part of application Serial No. 682,774, filed March 9, 1912, and division of application Serial No. 709,034, filed July 12, 1912. This application filed, July 3, 1914. Serial No. 849,007.

To all whom it may concern:

Be it known that I, FRnnnRIo EUGENE IVES, a citizen of the United States, resid ing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Color-Photography Prints, of

which the following is a specification.

This invention relates to a color-photography print, that is to say, a photograph or print made by the principles of color photography and showing the natural colors of the original subject.

The novel print forming the subject of this application may be prepared'in various modesffor example, in accordance with the method which is set forth in detail in my Patents Numbers 1,106,816 issued August 11, 1914, and 1,121,187 issued December 15, 1914:. I

This application is a continuation in part of the application resulting in said Patent No. 1,106,816 and the division of the application resulting in said Patent No. 1,121,187.

The general object of the present invention is to afford a satisfactory color-photography print of a structure which may be readily duplicatedor produced in quantities from a given set of color-selection photographic negatives, and more particularly upon an opaque back, typically represented by white paper; thus meeting a long existing demand f6r' a color photograph upon paper which may be multiplied at will after securing the necessary negatives, and being flexible is comparable to an ordinary photograph in all the practical and convenient aspects of the latter. Another object is to afford such a color photograph which is capable of production by comparatively simple and therefore practical methods and which when completedwill be permanent. Other objects hereof will be elucidated in the hereinafter following de-. scription.

To the attainment of such objects the present invention consists in the novel colorphotography print devised by me, possessing the advantages in its physical form, its ease of production and its permanence,- which have been referred to. 1

It will beunderstood that "in the art of color photography, to which the present invention relates, it has beenwell known to first, by a suitable camera, secure a set of,

for example three, color-selection negatives eachrepresenting one of the primary colors,

for example red, green and blue in the original subject, from which negatives in one way or another suitable positive images in in the complementary colors were produced which have been successively applied and which are combined into a single multi-color picture, at least one of the images being an imbibed image contained in the body of the colloid layer. The gelatin coating of the print is preferably both hardened and more danted. The back or support is preferably anopaque back, and is also preferably previous and flexible, and these three ualities are met by an ordinary paper bac The gelatin of the print contains preferably not merely one but a plurality of the differently colored images, and one or more or all of such images contained in the body of the gelatin are imbibed dye images.

- The imbibed images contained in the body of the gelatin layer of the print should be located near the top or front surface thereof so that there is no danger of the dye spreadsult is secured by reason of the already recited hardened and mordanted character of the gelatin. Each of the imbibed color images is likewise fixed and permanently ing laterally in the paper back. This re- 1 held in the gelatin through the action ofthe mordant therein.-

The advantageous print thus secured is one possessing brilliance of coloring without the'flatness or cloudiness which would result from difi'usion in soft gelatin or paper. It possesses permanence, as the color-- images are-held as received. It possesses all the'advantageous qualities of a paper photograph including flekibility, opacity, etc., and can be mounted in an album, rolled or otherwise handledwithout danger.

While the novel print above described could be produced by different methods, it

prior patents which method'may be briefly is, as already stated, conveniently produced the method set forth in my aforesald reviewed as follows. From the three or other number of color-selection negatives representing, for example the blue, red and green elements of the subject, therewill be made a set of'vehicles or dye carriers, for

example, in the form of gelatin reliefs, which can be used repeatedly in producing thefinished prints. These dye carriersare adapt- 7 ed to selectively absorb color from aqueous dye baths, and each carrier will be dyed up previous to each operation with suitable.

precaution 'for insuring proper depth of color. Three color images are thus produced, and the subsequent operation is 'to successively transfer them by imbibition to the print. This --transfer'e'nce according. to said prior patents involves accurate registration of the. carrier and print while preventing imbibition and then permitting imbibition while preventing relative movement; For example, thecar'rier and print 'may be brought into dryv face contact and put'underpressure followed by the application of moisture through the pervious or paper back of the rint, the molsture penetrating to the collo1d surfaces and'starting the imbibition, which is continued under pressure for a considerable period. After each im bibition the print and carrier are separated and then dried, or dried and then separated; The steps of applying color images by imbibition to the printare repeated until all three colorsfare applied. These colorsmay, for example, be'first yellow, thenblue-green,

and finally magenta. I

' In addition. to the features above recited,

I refer to; the following further preferred characteristics of the color-photography of the alumina or chromemordants.

'print hereof. I prefer that the colors employedshall be-water soluble dyes having little or no aflinity for gelatin, but capable of be1ng-mordanted in thegelatin of the print by an insoluble mordant such as one ther, I prefer to employ dyes and mordants ofsuch character that the latter may convert the former into insoluble color lakes. Pref:

erably certain alizarin dyes'will be em ployed. For blue, Bayers' alizarin blue.

;For magenta, equal mixture of Bayers ali- J 1 low, Bayers sulphon rubinol B. -These col.-

- ors have been-.converted'into ermanent and zar-in rubinol R and rubinol 3 G. For .yel-

insoluble lakes inbeing-imbi ed in thegel- '-at1n.

l Another preferable feature. is in having the hardness of the gelatin of the print such 1 as to withstand destruction under extremely high pressure; For this purposethe. gelatin may be hardened by formalin. The formalln hardened gelatin permits the imbibition ediwithj, a hardened-colloid as gelatin, 1 said coating containing a plural ty of differently colored, accurately registered, un-

coating of transparent consisting of an opaque back as paper,

to be carried on under the advantageous condition of extreme pressure and intimacy of contact.

The print with the three colors imbibed therein may be rendered of greater permanence by being supplementally fixed, either in a fixing bath containing one or more and preferably all of the following ingredients,

namely, tannic acid, acetate acid, acetate of calcium, or by varnishing with an amylacetate collodion varnish.

It will thus be seen that there has been described a color-photography print embodying the principles and attaining the objects and advantages before referred to, and

other advantages will be apparent to those skilled in the art. Since'certain details may be departed from without altering the pr1nciples of the improvement, no limitation to details is intended excepting as set forth in the appended claims.

lVhat is claimed is: a

1. A color-photography print prepared from a ,set of color-selection negatives, and consisting of an opaque back as paper coated with a hardened colloid as gelatin, and said coating containing a plurality of differentlycolored, accurately registered, .unblurred, imbibed dye images.

2. A color-photography print prepared from a set of color-selection negatives, and consisting of an opaque pervious back as paper coated with a hardened and mordanted colloid as gelatin, and said coating containing a plurality of differently-colored, accurately-registered, unblurred, imbibed dye images mordanted within the colloid coating.

- 3. A color-photography print prepared from a set ofcolor-selection negatives, and

consisting of an opaque back as paper, coat- I ed with a hardened colloid as gelatin, and

said coating containing a plurality of differ ently colored, accurately registered, unblurred, imbibed dye images con cation near to the top-surface of the colloid coating.

4. A' color-'- ')hotography print prepared from a set of color-selection negatives, and consisting of'an' opaque back as paper, coatd V-paper, coated with a hardened and mordanted colloid as gelatin, and said coating containing a plurality of difl'erently-colored, accurately iregistered, unblurred, imbibed dye images, mordanted Within the colloid coating and composed of insoluble lakes.

7 A multi-colored print consisting of a pervious base, as paper, coated with a hardened and mordanted colloid, containing a plurality of registered, diflerently-colored, imbibed images.

In testimony whereof, I have aflixed my 15 signature in presence of two witnesses.

FREDERIO EUGENE IVES. Witnesses;

DONALD CAMPBELL,

J DoLA v. 

